Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy syzbot reported a crash in tc_act_in_hw() during netns teardown where tcf_idrinfo_destroy() passed an ERR_PTR(-EBUSY) value as a tc_action pointer, leading to an invalid dereference. Guard against ERR_PTR entries when iterating the action IDR so teardown does not call tc_act_in_hw() on an error pointer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 84a7d6797e6a03705e6b48c613fa424662049d87 before 67550a1130b647bb0d093c9c0a810c69aa6a30a8; affected 84a7d6797e6a03705e6b48c613fa424662049d87 before adb25a46dc0a43173f5ea5f5f58fc8ba28970c7c |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.6 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.